2394 lines
50 KiB
ArmAsm
2394 lines
50 KiB
ArmAsm
;;; ============================================================
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;;; Franklin ACE 2X00 ROM V6.0 Disassembly
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;;;
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;;; First $1000 bytes of U2 ROM (usually banked in $C000-$CFFF)
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;;;
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;;; Build with CC65's ca65 assembler
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;;; ============================================================
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.setcpu "65C02"
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.include "opcodes.inc"
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.feature string_escapes
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;;; ============================================================
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;;; Patches
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;;; Set to 1 to include preliminary fixes for:
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;;; * MouseText mode failing to exist on $18 output.
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;;; * MouseText displaying if $40-$5F sent to COUT.
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INCLUDE_PATCHES = 0
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;;; ============================================================
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;;; Equates
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;;; Zero Page
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WNDLFT := $20
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WNDWDTH := $21
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WNDTOP := $22
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WNDBTM := $23
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CH := $24
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CV := $25
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BASL := $28
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BASH := $29
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BAS2L := $2A
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BAS2H := $2B
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INVFLG := $32
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CSWL := $36
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CSWH := $37
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KSWL := $38
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KSWH := $39
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A1L := $3C
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A1H := $3D
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A2L := $3E
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A2H := $3F
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A4L := $42
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A4H := $43
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RNDL := $4E
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RNDH := $4F
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;;; Page 3 Vectors
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XFERVEC := $3ED
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L03F0 := $3F0 ; ???
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L03FE := $3FE ; ???
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;;; Screen Holes
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SAVEA := $4F8
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SAVEX := $578
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SAVEY := $478
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OLDCH := $47B
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MODE := $4FB
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;; Bit 7 = Escape Mode
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;; Bit 6 = MouseText active
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;; Bit 5 = ??? set when "normal"
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;; Bit 4 = ??? set when "normal"
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;; Bit 3 = ??? unused ???
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;; Bit 2 = ??? unused ???
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;; Bit 1 = ??? used for ???
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;; Bit 0 = ??? used for ???
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M_ESC = %10000000
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M_MOUSE = %01000000
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M_NORMAL= %00110000
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M_INACTIVE = $FF ; When firmware is inactive
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OURCH := $57B
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OURCV := $5FB
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CHAR := $67B
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XCOORD := $6FB
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TEMP1 := $77B ; Unused
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OLDBASL := $77B
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TEMP2 := $7FB
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OLDBASH := $7FB
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FKEYPTR := $479 ; Holds offset from Aux $200 to FKEY def
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;;; I/O Soft Switches
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KBD := $C000
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CLR80COL:= $C000
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SET80COL:= $C001
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RDMAINRAM := $C002
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RDCARDRAM := $C003
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WRMAINRAM := $C004
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WRCARDRAM := $C005
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ALTZPOFF:= $C008
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ALTZPON := $C009
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CLR80VID:= $C00C
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SET80VID:= $C00D
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CLRALTCHAR := $C00E
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SETALTCHAR := $C00F
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KBDSTRB := $C010
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RDLCBNK2:= $C011
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RDLCRAM := $C012
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RDRAMRD := $C013
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RDRAMWRT:= $C014
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RDCXROM := $C015
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RDALTZP := $C016
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RDC3ROM := $C017
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RD80COL := $C018
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RDVBL := $C019
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RDTEXT := $C01A
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RDPAGE2 := $C01C
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ALTCHARSET := $C01E
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RD80VID := $C01F
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TXTPAGE1:= $C054
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TXTPAGE2:= $C055
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RD63 := $C063
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PTRIG := $C070
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ROMIN := $C081
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ROMIN2 := $C082
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LCBANK2 := $C083
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LCBANK1 := $C08B
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;;; Documented Firmware Entry Points
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C3KeyIn := $C305
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C3COut1 := $C307
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AUXMOVE := $C311
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XFER := $C314
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CLRROM := $CFFF
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;;; Monitor ROM
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BELLB := $FBE2
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SETWND := $FB4B
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SETKBD := $FE89
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SETVID := $FE93
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MON_VTAB:= $FC22
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VTABZ := $FC24
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CLREOP := $FC42
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HOME := $FC58
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CLREOL := $FC9C
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CLREOLZ := $FC9E
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COUT := $FDED
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COUT1 := $FDF0
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MON_SAVE:= $FF4A
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;;; ============================================================
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.org $C000
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;;; ============================================================
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;;; Page $C0 - Unused (garbage data?)
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;;; ============================================================
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.res $100, 0
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;;; ============================================================
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;;; Page $C1 - Parallel Port Firmware
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;;; ============================================================
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.scope pageC1
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LC100: bra LC111
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LC102: bra LC107
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LC104: nop
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sec ; $Cn05 = $38 Pascal 1.1 sig
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nop
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LC107: clc ; $Cn07 = $18 Pascal 1.1 sig
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clv
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bra LC114
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;; Signature bytes
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.byte $01 ; Pascal 1.1 signature
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.byte $31 ; $31 = Super Serial Card (!)
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;; Pascal 1.1 Firmware Protocol Table
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.byte .lobyte(LC12B)
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.byte .lobyte(LC133)
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.byte .lobyte(LC136)
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.byte .lobyte(LC13E)
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LC111: bit LC135
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LC114: jsr LC1D6
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pha
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phx
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phy
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sta $0679
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bvc LC122
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jsr $C806
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LC122: jsr $C83C
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ply
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plx
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pla
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LC128: jmp $C5FA
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LC12B: jsr LC1D6
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jsr $C897
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bra LC128
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LC133: ldx #$03
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LC135: rts
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LC136: jsr LC1D6
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jsr $C89D
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bra LC128
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LC13E: jsr LC1D6
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jsr $C8A5
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bra LC128
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LC146: lda #$00
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bit RDALTZP
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bpl LC14F
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ora #$80
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LC14F: bit RDRAMRD
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bpl LC156
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ora #$40
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LC156: bit RDRAMWRT
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bpl LC15D
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ora #$20
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LC15D: bit RDLCBNK2
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bpl LC164
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ora #$10
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LC164: bit RDLCRAM
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bpl LC16B
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ora #$08
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LC16B: bit RD80COL
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bpl LC177
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bit RDPAGE2
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bpl LC177
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ora #$04
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LC177: rts
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LC178: phx
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asl a
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asl a
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bcc LC180
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sta RDCARDRAM
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LC180: asl a
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bcc LC186
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sta WRCARDRAM
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LC186: asl a
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bcc LC193
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asl a
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bcc LC18F
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ldx #$03
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.byte $2C
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LC18F: ldx #$01
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bra LC19B
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LC193: asl a
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bcc LC199
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ldx #$0B
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.byte $2C
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LC199: ldx #$09
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LC19B: bit $C080,x
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bit $C080,x
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asl a
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bcc LC1A7
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sta TXTPAGE2
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LC1A7: plx
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rts
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LC1A9: bit #$04
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beq LC1B0
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sta TXTPAGE1
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LC1B0: sta RDMAINRAM
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sta WRMAINRAM
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bit ROMIN
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rts
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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LC1C1: brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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jsr LC128
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jsr COUT1
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LC1D6: php
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sei
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pha
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lda #$C1
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sta $07F8
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sta $C0BA
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sta $C0B8
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sta CLRROM
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pla
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plp
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rts
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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LC1F2: plx
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bit CLRROM
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rti
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LC1F7: jmp LC146
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LC1FA: jmp LC178
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LC1FD: jmp LC1A9
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.endscope
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;;; ============================================================
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;;; Page $C2 - Serial Port Firmware
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;;; ============================================================
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.scope pageC2
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bit $C5A7
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bra LC211
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sec ; $Cn05 = $38 Pascal 1.1 sig
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.byte OPC_BCC ; never taken
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clc ; $Cn07 = $18 Pascal 1.1 sig
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clv
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bra LC211
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;; Signature bytes
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.byte $01 ; Pascal 1.1 signature
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.byte $31 ; $31 = Super Serial Card
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;; Pascal 1.1 Firmware Protocol Table
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.byte .lobyte(LC214)
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.byte .lobyte(LC217)
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.byte .lobyte(LC21A)
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.byte .lobyte(LC21D)
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LC211: jmp $C500
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LC214: jmp $C51F
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LC217: jmp $C528
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LC21A: jmp $C530
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LC21D: jmp $C538
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;; ???
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LC220: lda $077C
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and #$F1
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sta $077C
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sec
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lda RDVBL
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bmi @l2
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sta PTRIG
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lda #$08
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tsb $077C
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clc
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bit $067C
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bpl @l1
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lda #$20
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tsb $077C
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lda $07FC
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and #$02
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beq @l1
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tsb $077C
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stz $067C
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@l1: bit RD63
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bmi @l2
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lda #$04
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tsb $077C
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@l2: lda RDCXROM
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ora RDC3ROM
|
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bmi @l3
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jmp @l12
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|
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@l3: sta $067C
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lda RDCXROM
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sta $C048 ; ???
|
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bpl @l7
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txa
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bpl @l5
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lda $067D
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cmp $047C
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bne @l4
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lda $077D
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cmp $057C
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beq @l11
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@l4: inc $047C
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bne @l11
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inc $057C
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bra @l11
|
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@l5: lda $047D
|
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cmp $047C
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bne @l6
|
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lda $057D
|
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cmp $057C
|
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beq @l11
|
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@l6: sec
|
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lda $047C
|
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sbc #$01
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sta $047C
|
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lda $057C
|
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sbc #$00
|
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sta $057C
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bra @l11
|
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@l7: tya
|
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bmi @l9
|
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lda $06FD
|
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cmp $04FC
|
|
bne @l8
|
|
lda $07FD
|
|
cmp $05FC
|
|
beq @l11
|
|
@l8: inc $04FC
|
|
bne @l11
|
|
inc $05FC
|
|
bra @l11
|
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@l9: lda $04FD
|
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cmp $04FC
|
|
bne @l10
|
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lda $05FD
|
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cmp $05FC
|
|
beq @l11
|
|
@l10: sec
|
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lda $04FC
|
|
sbc #$01
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sta $04FC
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|
lda $05FC
|
|
sbc #$00
|
|
sta $05FC
|
|
@l11: clc
|
|
@l12: bcs @l13
|
|
lda $077C
|
|
and $07FC
|
|
beq @l13
|
|
sec
|
|
@l13: rts
|
|
|
|
;; ???
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|
|
|
ldx $EB
|
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lda $0342,x
|
|
.byte $8D
|
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.byte $12
|
|
.endscope
|
|
|
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;;; ============================================================
|
|
;;; Page $C3 - Enhanced 80 Column Firmware
|
|
;;; ============================================================
|
|
|
|
;; Init
|
|
LC300: bit SETV ; V = init
|
|
bra MainEntry
|
|
|
|
;; Input
|
|
.assert * = C3KeyIn, error, "Entry point mismatch"
|
|
LC305: sec ; $Cn05 = $38 Pascal 1.1 sig
|
|
.byte OPC_BCC ; never taken; skip next byte
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|
|
|
;; Output
|
|
.assert * = C3COut1, error, "Entry point mismatch"
|
|
LC307: clc ; $Cn07 = $18 Pascal 1.1 sig
|
|
clv
|
|
bra MainEntry
|
|
|
|
;; Signature bytes
|
|
.byte $01 ; Pascal 1.1 signature
|
|
.byte $88 ; $88 = 80 Column Card
|
|
|
|
;; Pascal 1.1 Firmware Protocol Table
|
|
.byte <JPINIT
|
|
.byte <JPREAD
|
|
.byte <JPWRITE
|
|
.byte <JPSTAT
|
|
|
|
;; AUXMOVE
|
|
.assert * = AUXMOVE, error, "Entry point mismatch"
|
|
jmp JumpAuxMove
|
|
|
|
;; XFER
|
|
.assert * = XFER, error, "Entry point mismatch"
|
|
jsr pageC5_DoBankC5
|
|
jmp $CC03 ; ???
|
|
|
|
;;; ============================================================
|
|
;;; Pascal Entry Points
|
|
|
|
|
|
JPINIT: jsr ClearROM
|
|
jsr PascalInit
|
|
LC320: jmp pageC5_DoBankC5
|
|
|
|
JPREAD: jsr ClearROM
|
|
jsr PascalRead
|
|
bra LC320
|
|
|
|
JPWRITE:jsr ClearROM
|
|
jsr PascalWrite
|
|
bra LC320
|
|
|
|
JPSTAT: jsr ClearROM
|
|
jsr PascalStatus
|
|
bra LC320
|
|
|
|
JumpAuxMove:
|
|
jsr pageC5_DoBankC5
|
|
jmp $CC06
|
|
|
|
;;; ============================================================
|
|
;;; Main Entry Points
|
|
|
|
MainEntry:
|
|
jsr ClearROM
|
|
sta SAVEA
|
|
stx SAVEX
|
|
sty SAVEY
|
|
pha
|
|
bvc l1
|
|
|
|
;; Init
|
|
jsr LC806
|
|
clc
|
|
|
|
l1: php
|
|
jsr LC9B4
|
|
plp
|
|
pla
|
|
bcc l7 ; Input or output?
|
|
|
|
;; Input
|
|
ldx SAVEX
|
|
beq l2
|
|
dex
|
|
lda $0678
|
|
cmp #$88 ; left?
|
|
beq l2
|
|
cmp $0200,x
|
|
bne l5
|
|
sta $0200,x
|
|
|
|
l2: jsr LC96F
|
|
cmp #$9B ; escape?
|
|
beq EscapeMode
|
|
cmp #$8D ; return?
|
|
bne l3
|
|
pha
|
|
jsr DoClearEOL
|
|
pla
|
|
l3: cmp #$95 ; right?
|
|
bne l4
|
|
ldy CH
|
|
jsr LC9A8
|
|
l4: sta $0678
|
|
bra l6
|
|
l5: jsr LC822
|
|
stz $0678
|
|
l6: bra l8
|
|
|
|
;; Output
|
|
l7: jsr OutputChar
|
|
lda SAVEA
|
|
|
|
l8: ldx SAVEX
|
|
ldy CH
|
|
sty OURCH
|
|
sty XCOORD
|
|
ldy SAVEY
|
|
jmp pageC5_DoBankC5
|
|
|
|
;;; ============================================================
|
|
;;; Escape Mode
|
|
|
|
EscapeMode:
|
|
lda #M_ESC
|
|
tsb MODE
|
|
jsr LC822
|
|
jsr ProcessEscapeModeKey
|
|
cmp #$98
|
|
beq l4
|
|
lda MODE
|
|
bmi EscapeMode
|
|
bra l2
|
|
|
|
;;; ============================================================
|
|
|
|
ClearROM:
|
|
php
|
|
sei
|
|
pha
|
|
sta $C0BA ; ???
|
|
sta CLRROM
|
|
lda #$C3
|
|
sta $07F8
|
|
pla
|
|
plp
|
|
SETV: rts
|
|
|
|
;;; ============================================================
|
|
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
jsr pageC5_DoBankC5
|
|
jmp $CC00
|
|
|
|
LC3E2: plx
|
|
bit CLRROM
|
|
rti
|
|
|
|
brk
|
|
jsr ClearROM
|
|
jmp LCE0D
|
|
|
|
jsr ClearROM
|
|
jmp InitFKEYDefinitions
|
|
|
|
LC3F4: jsr ClearROM
|
|
jmp LCCB2
|
|
|
|
LC3FA: jsr ClearROM
|
|
jmp LCCF5
|
|
|
|
;;; ============================================================
|
|
;;; Page $C4 - Mouse Card Firmware
|
|
;;; ============================================================
|
|
|
|
.scope pageC4
|
|
|
|
bit SETV
|
|
bra Init
|
|
|
|
sec
|
|
.byte OPC_BCC ; never taken; skip next byte
|
|
|
|
clc
|
|
clv
|
|
bra Init
|
|
|
|
;; Signature bytes
|
|
.byte $01, $20 ; $20 = Mouse
|
|
|
|
;; Pascal 1.1 Firmware Protocol Table
|
|
.byte .lobyte(PascalEP)
|
|
.byte .lobyte(PascalEP)
|
|
.byte .lobyte(PascalEP)
|
|
.byte .lobyte(PascalEP)
|
|
|
|
.byte $00 ; "optional routines follow"
|
|
|
|
;; Mouse routine entry points
|
|
.byte .lobyte(SetMouse)
|
|
.byte .lobyte(ServeMouse)
|
|
.byte .lobyte(ReadMouse)
|
|
.byte .lobyte(ClearMouse)
|
|
.byte .lobyte(PosMouse)
|
|
.byte .lobyte(ClampMouse)
|
|
.byte .lobyte(HomeMouse)
|
|
.byte .lobyte(InitMouse)
|
|
|
|
;; ???
|
|
.byte .lobyte(PascalEP)
|
|
.byte .lobyte(LC45F)
|
|
|
|
Init: jsr pageC5_DoBankC5
|
|
bvc @l1
|
|
jsr $C806
|
|
@l1: bcc @l2
|
|
jmp $C838
|
|
|
|
@l2: jmp LC825
|
|
|
|
PascalEP:
|
|
ldx #$03
|
|
SETV: rts
|
|
|
|
SetMouse:
|
|
jsr pageC5_DoBankC5
|
|
jmp $C8D4
|
|
|
|
ServeMouse:
|
|
jsr pageC5_DoBankC5
|
|
jmp $C916
|
|
|
|
ReadMouse:
|
|
jsr pageC5_DoBankC5
|
|
jmp $C922
|
|
|
|
ClearMouse:
|
|
jsr pageC5_DoBankC5
|
|
jmp $C958
|
|
|
|
PosMouse:
|
|
jsr pageC5_DoBankC5
|
|
jmp $C967
|
|
|
|
ClampMouse:
|
|
jsr pageC5_DoBankC5
|
|
jmp $C969
|
|
|
|
HomeMouse:
|
|
jsr pageC5_DoBankC5
|
|
jmp $C93E
|
|
|
|
InitMouse:
|
|
jsr pageC5_DoBankC5
|
|
jmp $C8AC
|
|
|
|
LC45F: ldx $C066 ; ???
|
|
ldy $C067
|
|
jmp $C220
|
|
|
|
LC468: jsr pageC5_DoBankC5
|
|
jmp $C9A0
|
|
|
|
.res $C4A0 - *, 0
|
|
|
|
;; ???
|
|
LC4A0: cld
|
|
phx
|
|
phy
|
|
pha
|
|
ldx $C066
|
|
ldy $C067
|
|
lda $C0BC
|
|
pha
|
|
sta $C0B9
|
|
jmp LC700
|
|
|
|
;; ???
|
|
pla
|
|
bpl LC4BE
|
|
sta ALTZPON
|
|
ldx $0101
|
|
txs
|
|
LC4BE: ldx $07FF
|
|
pla
|
|
jsr $C1FA
|
|
pla
|
|
bmi LC4CB
|
|
sta $C0B8
|
|
LC4CB: sta $C0BA
|
|
stx $07F8
|
|
pla
|
|
ply
|
|
cpx #$C1
|
|
beq LC4E4
|
|
cpx #$C3
|
|
beq LC4E7
|
|
cpx #$C5
|
|
beq LC4EA
|
|
plx
|
|
sta $C0BB
|
|
rti
|
|
|
|
LC4E4: jmp $C1F2
|
|
|
|
LC4E7: jmp LC3E2
|
|
|
|
LC4EA: jmp pageC5_LC5F5
|
|
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
|
|
LC4F8: jmp LC468
|
|
|
|
|
|
.byte $D6 ; $CnFB = $D6 mouse signature
|
|
.byte $00
|
|
|
|
jmp InitMouse
|
|
.endscope
|
|
|
|
;;; ============================================================
|
|
;;; Page $C5
|
|
;;; ============================================================
|
|
|
|
.scope pageC5
|
|
|
|
LC500: jsr BankC5
|
|
sta $067A
|
|
phx
|
|
phy
|
|
pha
|
|
bvc LC50E
|
|
jsr $C806
|
|
LC50E: bcc LC516
|
|
jsr $C908
|
|
plx
|
|
bra LC51A
|
|
LC516: jsr $C83B
|
|
pla
|
|
LC51A: ply
|
|
plx
|
|
jmp BankC8
|
|
|
|
jsr BankC5
|
|
jsr $C8C7
|
|
jmp BankC8
|
|
|
|
jsr BankC5
|
|
jsr $C8CD
|
|
bra BankC8
|
|
|
|
jsr BankC5
|
|
jsr $C8D2
|
|
bra BankC8
|
|
|
|
jsr BankC5
|
|
jsr $C8DA
|
|
bra BankC8
|
|
|
|
jsr BankC8
|
|
ora #$80
|
|
jsr COUT1
|
|
bra BankC5
|
|
|
|
jsr BankC8
|
|
ora #$80
|
|
jsr COUT
|
|
bra BankC5
|
|
|
|
jsr BankC8
|
|
jsr LC3F4
|
|
bra BankC5
|
|
|
|
jsr BankC8
|
|
jsr LC3FA
|
|
and #$7F
|
|
bra BankC5
|
|
|
|
jsr BankC8
|
|
jsr CLREOLZ
|
|
bra BankC5
|
|
|
|
jsr BankC8
|
|
jsr HOME
|
|
bra BankC5
|
|
|
|
jsr BankC8
|
|
jsr LC300
|
|
bra BankC5
|
|
|
|
jsr BankC8
|
|
jsr pageC4::LC4F8
|
|
bra BankC5
|
|
|
|
jsr BankC8
|
|
jsr pageC7_LC7FD
|
|
bra BankC5
|
|
|
|
jsr BankC8
|
|
jsr VTABZ
|
|
;; Fall through
|
|
|
|
;;; ============================================================
|
|
|
|
;;; Hypothesis: This banks in a special "C5" C800-CFFF
|
|
|
|
BankC5: php
|
|
sei
|
|
pha
|
|
lda #$C5
|
|
sta $07F8
|
|
sta $C0BA
|
|
sta $C0B8
|
|
sta CLRROM
|
|
pla
|
|
plp
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
;;; Hypothesis: This banks in a special "C8" C800-CFFF
|
|
|
|
BankC8: php
|
|
sei
|
|
pha
|
|
lda #$C8
|
|
sta $07F8
|
|
sta $C0BB
|
|
sta $C0B9
|
|
pla
|
|
plp
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
jsr BankC8
|
|
LC5BC: bit $C1C1
|
|
bmi LC5BC
|
|
sta $C090
|
|
bra BankC5
|
|
|
|
LC5C6: jsr BankC5
|
|
jsr $C9A5
|
|
bra BankC8
|
|
|
|
.res $C5F5 - *, 0
|
|
|
|
LC5F5: plx
|
|
bit CLRROM
|
|
rti
|
|
|
|
;;; ============================================================
|
|
|
|
DoBankC5:
|
|
jmp BankC8
|
|
|
|
;;; ============================================================
|
|
|
|
jmp LC5C6
|
|
.endscope
|
|
pageC5_DoBankC5 := pageC5::DoBankC5
|
|
pageC5_LC5F5 := pageC5::LC5F5
|
|
|
|
;;; ============================================================
|
|
;;; Page $C6 - Disk II Firmware
|
|
;;; ============================================================
|
|
|
|
.scope pageC6
|
|
bit $20 ; $Cn01 = $20 ProDOS device sig
|
|
cpy $00 ; $Cn03 = $00 ProDOS device sig
|
|
ldx #$03 ; $Cn05 = $03 ProDOS device sig
|
|
|
|
asl A1L
|
|
jsr pageC5::DoBankC5
|
|
ldy #$69
|
|
LC60D: lda $CF26,y
|
|
sta $036C,y
|
|
dey
|
|
bpl LC60D
|
|
ldx #$60
|
|
LC618: inc BAS2H
|
|
cpx BAS2H
|
|
bne LC618
|
|
jsr $CEA6
|
|
LC621: dec $41
|
|
bne LC621
|
|
LC625: dec A1H
|
|
bne LC625
|
|
LC629: dec $26
|
|
bne LC629
|
|
LC62D: dec $27
|
|
lda $27
|
|
cmp #$08
|
|
bne LC62D
|
|
|
|
.res $C65C - *, ::OPC_NOP
|
|
|
|
pha
|
|
|
|
nop
|
|
nop
|
|
nop
|
|
nop
|
|
nop
|
|
nop
|
|
|
|
bra LC683
|
|
|
|
.res $C683 - *, ::OPC_NOP
|
|
|
|
LC683: pla
|
|
LC684: jsr pageC5::DoBankC5
|
|
jsr $CE00
|
|
bra LC6EA
|
|
|
|
|
|
.res $C6A6 - *, 0
|
|
|
|
ldy #$56 ; ???
|
|
sty A1L
|
|
sec
|
|
clv
|
|
jmp $CE51
|
|
|
|
.res $C6EA - *, ::OPC_NOP
|
|
|
|
LC6EA: nop
|
|
lda A1H
|
|
inc a
|
|
sta A1H
|
|
inc $27
|
|
cmp $0800
|
|
bcc LC684
|
|
ldy #$00
|
|
ldx BAS2H
|
|
jmp $0801
|
|
|
|
.byte $DE
|
|
.byte $00 ; $00 = Disk II, 16-Sector
|
|
.endscope
|
|
|
|
;;; ============================================================
|
|
;;; Page $C7 - ???
|
|
;;; ============================================================
|
|
|
|
LC700:
|
|
.scope pageC7
|
|
|
|
LC700: jsr $C1F7
|
|
pha
|
|
jsr $C1FD
|
|
lda $07F8
|
|
sta $07FF
|
|
phx
|
|
tsx
|
|
txa
|
|
clc
|
|
adc #$07
|
|
tax
|
|
lda $0100,x
|
|
plx
|
|
and #$10
|
|
bne LC747
|
|
jsr $C220
|
|
bcc LC744
|
|
jsr LC784
|
|
bcc LC744
|
|
pla
|
|
pha
|
|
bpl LC739
|
|
txa
|
|
tsx
|
|
stx $0101
|
|
ldx $0100
|
|
txs
|
|
tax
|
|
sta ALTZPOFF
|
|
lda #$80
|
|
LC739: pha
|
|
lda #$C4
|
|
pha
|
|
lda #$B4
|
|
pha
|
|
php
|
|
jmp (L03FE)
|
|
|
|
LC744: jmp pageC4::LC4BE
|
|
|
|
LC747: pla
|
|
sta $44
|
|
pla
|
|
bpl LC751
|
|
lda #$01
|
|
tsb $44
|
|
LC751: pla
|
|
ply
|
|
plx
|
|
plp
|
|
jsr MON_SAVE
|
|
pla
|
|
sta $3A
|
|
ply
|
|
sty $3B
|
|
bit RDALTZP
|
|
bpl LC781
|
|
tsx
|
|
stx $0101
|
|
ldx $0100
|
|
txs
|
|
sta ALTZPOFF
|
|
sta $3A
|
|
sty $3B
|
|
ldx #$05
|
|
LC774: sta ALTZPON
|
|
lda $44,x
|
|
sta ALTZPOFF
|
|
sta $44,x
|
|
dex
|
|
bpl LC774
|
|
LC781: jmp (L03F0)
|
|
|
|
;;; ============================================================
|
|
|
|
LC784: sec
|
|
lda $C0AA ; ???
|
|
tax
|
|
and #$0C
|
|
eor #$04
|
|
beq LC7E4
|
|
lda $C0A9 ; ???
|
|
|
|
LC792: sta $04FA
|
|
ora #$00
|
|
bpl LC7E4
|
|
and #$08
|
|
beq LC7BD
|
|
txa
|
|
and #$03
|
|
eor #$01
|
|
bne LC7BD
|
|
lda $04FF
|
|
eor #$C2
|
|
bne LC7E4
|
|
lda $C0A8 ; ???
|
|
ldx $057F
|
|
jsr LC7E5
|
|
bpl LC7B8
|
|
ldx #$00
|
|
LC7B8: stx $057F
|
|
bra LC7E3
|
|
|
|
LC7BD:
|
|
bit $04FA
|
|
bvc LC7E3
|
|
bit $05FA
|
|
bvs LC7E4
|
|
bpl LC7E3
|
|
lda KBD
|
|
bit $C0B4 ; Softswitch for Fkeys ???
|
|
bmi :+ ; leave high bit set for later
|
|
and #$7F
|
|
: bit KBDSTRB
|
|
ldx $05FF
|
|
jsr LC7E5
|
|
bne :+
|
|
ldx #$80
|
|
: stx $05FF
|
|
LC7E3: clc
|
|
LC7E4: rts
|
|
|
|
LC7E5: sta WRCARDRAM
|
|
sta $0800,x
|
|
sta WRMAINRAM
|
|
inx
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
|
|
LC7FD: jmp LC792
|
|
|
|
.endscope
|
|
pageC7_LC7FD := pageC7::LC7FD
|
|
|
|
;;; ============================================================
|
|
|
|
.res $C800 - *, 0
|
|
|
|
;;; ============================================================
|
|
;;; Pages $C8-$CF - Enhanced 80 Column Firmware
|
|
;;; ============================================================
|
|
|
|
LC800: .byte $C3
|
|
eor $AA,x
|
|
jmp $C4A0 ; bad disasm?
|
|
|
|
LC806: lda #<LC305
|
|
sta KSWL
|
|
ldx #>LC305
|
|
stx KSWH
|
|
lda #<LC307
|
|
sta CSWL
|
|
stx CSWH
|
|
LC814: lda #M_NORMAL
|
|
sta MODE
|
|
jsr Enable80Col
|
|
jsr DoSETWND
|
|
jmp DoHomeAndClear
|
|
|
|
;;; ============================================================
|
|
|
|
LC822: jsr LCBE1
|
|
LC825: inc RNDL
|
|
bne LC82B
|
|
inc RNDH
|
|
LC82B: jsr LCCB8
|
|
bcc LC825
|
|
jsr LCCFB
|
|
cmp #$06
|
|
bcc LC840
|
|
and #$7F
|
|
sta CHAR
|
|
ora #$80
|
|
bra LC843
|
|
|
|
LC840: sta CHAR
|
|
LC843: pha
|
|
jsr LCBF8
|
|
pla
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
OutputChar:
|
|
sta CHAR
|
|
LC84C: jsr CheckPauseListing
|
|
lda MODE
|
|
and #$03 ; test low 2 bits (why???)
|
|
beq @l1
|
|
jmp LCA2F
|
|
|
|
@l1: lda CHAR
|
|
and #$7F
|
|
cmp #$20
|
|
bcc DoCtrlCharOut
|
|
ldy CH
|
|
cpy WNDWDTH
|
|
bcc @l2
|
|
jsr DoReturn
|
|
|
|
;; If MouseText is not active, make sure to map inverse
|
|
;; uppercase range to the control character range.
|
|
|
|
@l2:
|
|
.if !INCLUDE_PATCHES
|
|
lda CHAR ; char to be printed
|
|
bit INVFLG ; inverse?
|
|
.else
|
|
jsr Patch4 ; sets N flag if inverse char
|
|
nop
|
|
nop
|
|
.endif
|
|
bmi @l3 ; no, so not MT, just print it
|
|
|
|
and #$7F
|
|
|
|
bit MODE ; MT active? (bit 6 = M_MOUSE)
|
|
bvs @l3 ; yes, so skip correction
|
|
|
|
bit ALTCHARSET ; also skip correction if
|
|
bpl @l3 ; alt charset is disabled
|
|
|
|
;; If within "@ABC...XYZ[\]^_" range, map to $00-$1F
|
|
;; so it shows as inverse uppercase, not MouseText.
|
|
cmp #'@'
|
|
bcc :+
|
|
cmp #'_'+1
|
|
bcs :+
|
|
and #$1F
|
|
:
|
|
|
|
@l3: jsr LCC13
|
|
jmp DoForwardSpace
|
|
|
|
;;; ============================================================
|
|
|
|
DoNothing:
|
|
rts
|
|
|
|
;;; ============================================================
|
|
;;; Output control character handling
|
|
|
|
;; Input is char, < $20
|
|
DoCtrlCharOut:
|
|
sec
|
|
sbc #$07
|
|
bcc DoNothing
|
|
asl a
|
|
tax
|
|
jmp (@jt,x)
|
|
|
|
@jt:
|
|
.addr DoBell ; $07 Ctrl-G Bell
|
|
.addr DoBackspace ; $08 Ctrl-H Backspace
|
|
.addr DoNothing ; $09 Ctrl-I
|
|
.addr DoLineFeed ; $0A Ctrl-J Line feed
|
|
.addr DoClearEOS ; $0B Ctrl-K Clear EOS
|
|
.addr DoHomeAndClear ; $0C Ctrl-L Home and clear
|
|
.addr DoReturn ; $0D Ctrl-M Return
|
|
.addr DoNormal ; $0E Ctrl-N Normal
|
|
.addr DoInverse ; $0F Ctrl-O Inverse
|
|
.addr DoNothing ; $10 Ctrl-P
|
|
.addr Do40Col ; $11 Ctrl-Q 40-column
|
|
.addr Do80Col ; $12 Ctrl-R 80-column
|
|
.addr DoNothing ; $13 Ctrl-S
|
|
.addr DoNothing ; $14 Ctrl-T
|
|
.addr DoQuit ; $15 Ctrl-U Quit
|
|
.addr DoScroll ; $16 Ctrl-V Scroll
|
|
.addr DoScrollUp ; $17 Ctrl-W Scroll-up
|
|
.addr DoDisableMouseText ; $18 Ctrl-X Disable MouseText
|
|
.addr DoHome ; $19 Ctrl-Y Home
|
|
.addr DoClearLine ; $1A Ctrl-Z Clear line
|
|
.addr DoEnableMouseText ; $1B Ctrl-[ Enable MouseText
|
|
.addr DoForwardSpace ; $1C Ctrl-\ Forward space
|
|
.addr DoClearEOL ; $1D Ctrl-] Clear EOL
|
|
.addr DoCtrlCaret ; $1E Ctrl-^ ???
|
|
.addr DoUp ; $1F Ctrl-_ Up
|
|
|
|
;;; ============================================================
|
|
;;; For Escape key sequences
|
|
|
|
ProcessEscapeModeKey:
|
|
pha
|
|
lda #M_ESC
|
|
trb MODE
|
|
pla
|
|
and #$7F
|
|
cmp #'a'
|
|
bcc @l1
|
|
cmp #'z'+1
|
|
bcs @l1
|
|
and #$DF ; convert to uppercase
|
|
|
|
;; Scan table for match
|
|
@l1: ldx #$00
|
|
@l2: ldy @code_table,x
|
|
beq DoNothing
|
|
cmp @code_table,x
|
|
beq @l3
|
|
inx
|
|
bra @l2
|
|
|
|
@l3: txa
|
|
asl a
|
|
tax
|
|
jmp (@jt,x)
|
|
|
|
@code_table:
|
|
.byte '@' ; Escape @ - clear, home & exit mode
|
|
.byte 'A' ; Escape A - right & exit mode
|
|
.byte 'B' ; Escape B - left & exit mode
|
|
.byte 'C' ; Escape C - down & exit mode
|
|
.byte 'D' ; Escape D - up & exit mode
|
|
.byte 'E' ; Escape E - clear EOL & exit mode
|
|
.byte 'F' ; Escape F - clear EOS & exit mode
|
|
.byte 'I' ; Escape I - up
|
|
.byte 'J' ; Escape J - left
|
|
.byte 'K' ; Escape K - right
|
|
.byte 'M' ; Escape M - down
|
|
.byte $0b ; Escape up - up
|
|
.byte $0a ; Escape down - down
|
|
.byte $08 ; Escape left - left
|
|
.byte $15 ; Escape right - right
|
|
.byte '4' ; Escape 4 - 40 col mode
|
|
.byte '8' ; Escape 8 - 80 col mode
|
|
.byte $11 ; Escape Ctrl+Q - deactivate
|
|
|
|
.byte $00 ; sentinel
|
|
|
|
@jt:
|
|
.addr DoHomeAndClear ; Escape @ - clear, home & exit mode
|
|
.addr DoForwardSpace ; Escape A - right & exit mode
|
|
.addr DoBackspace ; Escape B - left & exit mode
|
|
.addr DoLineFeed ; Escape C - down & exit mode
|
|
.addr DoUp ; Escape D - up & exit mode
|
|
.addr DoClearEOL ; Escape E - clear EOL & exit mode
|
|
.addr DoClearEOS ; Escape F - clear EOS & exit mode
|
|
.addr DoUpRemain ; Escape I - up
|
|
.addr DoLeftRemain ; Escape J - left
|
|
.addr DoRightRemain ; Escape K - right
|
|
.addr DoDownRemain ; Escape M - down
|
|
.addr DoUpRemain ; Escape up - up
|
|
.addr DoDownRemain ; Escape down - down
|
|
.addr DoLeftRemain ; Escape left - left
|
|
.addr DoRightRemain ; Escape right - right
|
|
.addr Do40Col ; Escape 4 - 40 col mode
|
|
.addr Do80Col ; Escape 8 - 80 col mode
|
|
.addr DoQuit ; Escape Ctrl+Q - deactivate
|
|
|
|
;;; ============================================================
|
|
|
|
CheckPauseListing:
|
|
lda KBD
|
|
cmp #$93 ; Ctrl-S
|
|
bne @l3
|
|
bit KBDSTRB
|
|
@l1: lda KBD
|
|
bpl @l1
|
|
cmp #$83 ; Ctrl-C
|
|
beq @l3
|
|
.byte $2C
|
|
@l2: bpl $C900
|
|
@l3: rts
|
|
|
|
;;; ============================================================
|
|
|
|
LC941: ldy #$00
|
|
ldx #$00
|
|
@l1: cpy WNDWDTH
|
|
bcs @l2
|
|
jsr LC9A8
|
|
sta $0200,x
|
|
inx
|
|
iny
|
|
bra @l1
|
|
@l2: dey
|
|
sty CH
|
|
stx SAVEX
|
|
lda #$8D ; return
|
|
LC95B: rts
|
|
|
|
;;; ============================================================
|
|
|
|
Do40Col:
|
|
bit RD80VID
|
|
php
|
|
jsr Disable80Col
|
|
jsr LCAFA
|
|
jsr DoSETWND
|
|
plp
|
|
bpl LC95B
|
|
jmp LCC68
|
|
|
|
;;; ============================================================
|
|
|
|
LC96F: jsr LC822
|
|
cmp #$00
|
|
beq @l4
|
|
cmp #$02
|
|
beq LC941
|
|
cmp #$05
|
|
bne LC95B
|
|
ldy CH
|
|
@l1: iny
|
|
cpy WNDWDTH
|
|
beq @l2
|
|
jsr LC9A8
|
|
dey
|
|
jsr LCEC8
|
|
iny
|
|
bra @l1
|
|
|
|
@l2: dey
|
|
@l3: lda #$A0
|
|
jsr LCEC8
|
|
bra LC96F
|
|
|
|
@l4: ldy WNDWDTH
|
|
@l5: dey
|
|
cpy CH
|
|
beq @l3
|
|
dey
|
|
jsr LC9A8
|
|
iny
|
|
jsr LCEC8
|
|
bra @l5
|
|
|
|
;;; ============================================================
|
|
|
|
LC9A8: jsr LCEBD
|
|
ora #$80
|
|
cmp #$A0
|
|
bcs @l1
|
|
ora #$40
|
|
@l1: rts
|
|
|
|
;;; ============================================================
|
|
|
|
LC9B4: bit RD80VID
|
|
bpl LC9CC
|
|
lsr WNDWDTH
|
|
asl WNDWDTH
|
|
sta SET80COL
|
|
|
|
;; This is CH fix described in source fragment below!
|
|
LC9C0: lda CH ; HAVE THEY CHANGED COL?
|
|
cmp XCOORD
|
|
bne LC9CA ; YES - USE THEIRS
|
|
lda OURCH ; ELSE USE OURS (THEY MIGHT HAVE
|
|
; CHANGED THIS TOO)
|
|
LC9CA: sta CH
|
|
LC9CC: rts
|
|
|
|
;;; ============================================================
|
|
|
|
DoUpRemain:
|
|
jsr DoUp
|
|
bra Remain
|
|
|
|
DoDownRemain:
|
|
jsr DoLineFeed
|
|
bra Remain
|
|
|
|
DoRightRemain:
|
|
jsr DoForwardSpace
|
|
bra Remain
|
|
|
|
DoLeftRemain:
|
|
jsr DoBackspace
|
|
;; fall through
|
|
|
|
Remain: lda #$80
|
|
bra SetModeBits
|
|
|
|
;;; ============================================================
|
|
|
|
DoInverse:
|
|
ldy #$3F
|
|
.byte OPC_BIT_abs ; skip next instruction
|
|
DoNormal:
|
|
ldy #$FF
|
|
sty INVFLG
|
|
LC9EA: rts
|
|
|
|
;;; ============================================================
|
|
|
|
Do80Col:
|
|
bit RD80VID
|
|
php
|
|
jsr Enable80Col
|
|
jsr LCAFA
|
|
jsr DoSETWND
|
|
plp
|
|
bmi LC9EA
|
|
jmp LCC18
|
|
|
|
;;; ============================================================
|
|
|
|
DoQuit:
|
|
jsr Do40Col
|
|
jsr DoSETVID
|
|
jsr DoSETKBD
|
|
lda #23
|
|
ldx #0
|
|
jsr LCAA1
|
|
|
|
lda #M_INACTIVE
|
|
sta MODE
|
|
|
|
lda #$98
|
|
rts
|
|
|
|
;;; ============================================================
|
|
;;; Adusting MODE Bits
|
|
|
|
DoCtrlCaret:
|
|
lda #$FC ; clear mode bits %xxxxxx00
|
|
jsr PreserveModeBits
|
|
lda #$32 ; set mode bits %xx11xx1x
|
|
bra SetModeBits
|
|
|
|
DoDisableMouseText:
|
|
.if !INCLUDE_PATCHES
|
|
lda #M_MOUSE ; BUG! Should be ~M_MOUSE
|
|
.else
|
|
lda #.lobyte(~M_MOUSE)
|
|
.endif
|
|
|
|
PreserveModeBits:
|
|
and MODE
|
|
bra StoreMode
|
|
|
|
DoEnableMouseText:
|
|
lda #M_MOUSE
|
|
|
|
SetModeBits:
|
|
ora MODE
|
|
StoreMode:
|
|
sta MODE
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
LCA2F: lda CHAR
|
|
sec
|
|
sbc #$20
|
|
and #$7F
|
|
pha
|
|
dec MODE
|
|
lda MODE
|
|
and #$03
|
|
bne @l2
|
|
pla
|
|
cmp #$18
|
|
bcs @l1
|
|
jsr LCAA3
|
|
@l1: lda $05F8
|
|
cmp WNDWDTH
|
|
bcs :+
|
|
sta CH
|
|
: rts
|
|
|
|
@l2: pla
|
|
sta $05F8
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
DoBackspace:
|
|
lda CH
|
|
beq LCA60
|
|
dec CH
|
|
LCA5F: rts
|
|
|
|
;;; ============================================================
|
|
|
|
LCA60: lda CV
|
|
beq LCA5F
|
|
lda WNDWDTH
|
|
dec a
|
|
sta CH
|
|
|
|
DoUp: lda CV
|
|
beq LCA5F
|
|
dec CV
|
|
bra LCAA5
|
|
|
|
;;; ============================================================
|
|
|
|
DoForwardSpace:
|
|
inc CH
|
|
lda CH
|
|
cmp WNDWDTH
|
|
bcc LCA5F
|
|
;; fall through
|
|
|
|
;;; ============================================================
|
|
|
|
DoReturn:
|
|
stz CH
|
|
;; fall through
|
|
|
|
;;; ============================================================
|
|
|
|
DoLineFeed:
|
|
lda CV
|
|
cmp #$FF
|
|
beq @l1
|
|
cmp #$17
|
|
bcs DoScrollUp
|
|
@l1: inc CV
|
|
bra LCAA5
|
|
|
|
;;; ============================================================
|
|
|
|
DoHome:
|
|
lda WNDTOP
|
|
ldx #$00
|
|
bra LCAA1
|
|
|
|
;;; ============================================================
|
|
|
|
DoClearLine:
|
|
lda CH
|
|
pha
|
|
stz CH
|
|
jsr DoClearEOL
|
|
pla
|
|
sta CH
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
LCA9B: lda $06F8
|
|
ldx $0778
|
|
LCAA1: stx CH
|
|
LCAA3: sta CV
|
|
LCAA5: jmp DoMON_VTAB
|
|
|
|
;;; ============================================================
|
|
|
|
DoScrollUp:
|
|
lda CH
|
|
pha
|
|
jsr DoHome
|
|
@l1: ldy BASH
|
|
sty BAS2H
|
|
ldy BASL
|
|
sty BAS2L
|
|
lda WNDBTM
|
|
beq @l5
|
|
dec a
|
|
cmp CV
|
|
beq @l5
|
|
bcc @l5
|
|
inc CV
|
|
jsr LCAA5
|
|
ldy WNDWDTH
|
|
dey
|
|
bit RD80VID
|
|
bmi @l3
|
|
@l2: lda (BASL),y
|
|
sta (BAS2L),y
|
|
dey
|
|
bpl @l2
|
|
bra @l1
|
|
@l3: tya
|
|
lsr a
|
|
tay
|
|
@l4: bit TXTPAGE1
|
|
lda (BASL),y
|
|
sta (BAS2L),y
|
|
bit TXTPAGE2
|
|
lda (BASL),y
|
|
sta (BAS2L),y
|
|
dey
|
|
bpl @l4
|
|
bit TXTPAGE1
|
|
bra @l1
|
|
@l5: stz CH
|
|
jsr DoClearEOL
|
|
plx
|
|
lda CV
|
|
bra LCAA1
|
|
|
|
LCAFA: lda CV
|
|
sta $06F8
|
|
lda CH
|
|
sta $0778
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
DoScroll:
|
|
jsr LCAFA
|
|
lda WNDBTM
|
|
dec a
|
|
dec a
|
|
sta $05F8
|
|
LCB0F: lda $05F8
|
|
jsr LCAA3
|
|
lda BASL
|
|
sta BAS2L
|
|
lda BASH
|
|
sta BAS2H
|
|
lda $05F8
|
|
inc a
|
|
jsr LCAA3
|
|
ldy WNDWDTH
|
|
dey
|
|
LCB27: phy
|
|
bit TXTPAGE1
|
|
bit RD80VID
|
|
bpl LCB38
|
|
tya
|
|
lsr a
|
|
tay
|
|
bcs LCB38
|
|
bit TXTPAGE2
|
|
LCB38: lda (BAS2L),y
|
|
sta (BASL),y
|
|
ply
|
|
dey
|
|
bpl LCB27
|
|
bit TXTPAGE1
|
|
lda $05F8
|
|
cmp WNDTOP
|
|
beq LCB4F
|
|
dec $05F8
|
|
bra LCB0F
|
|
LCB4F: lda #$00
|
|
jsr LCAA3
|
|
jsr DoClearLine
|
|
bit TXTPAGE1
|
|
jmp LCA9B
|
|
|
|
;;; ============================================================
|
|
|
|
PascalInit:
|
|
jsr LC814
|
|
LCB60: jsr LCBE1
|
|
LCB63: ldx CH
|
|
stx OURCH
|
|
stx XCOORD
|
|
ldx #$00
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
PascalRead:
|
|
jsr InitTextWindow
|
|
jsr LC822
|
|
lda CHAR
|
|
bra LCB63
|
|
|
|
;;; ============================================================
|
|
|
|
PascalWrite:
|
|
sta CHAR
|
|
jsr InitTextWindow
|
|
jsr LCBF8
|
|
lda CHAR
|
|
ora #$80
|
|
sta CHAR
|
|
and #$7F
|
|
cmp #$15
|
|
beq LCB63
|
|
cmp #$0D
|
|
beq @l1
|
|
jsr LC84C
|
|
bra LCB60
|
|
@l1: stz CH
|
|
bra LCB60
|
|
|
|
;;; ============================================================
|
|
|
|
PascalStatus:
|
|
cmp #$00
|
|
beq @l1
|
|
cmp #$01
|
|
bne @l2
|
|
jsr LCCB8
|
|
bra LCB63
|
|
@l1: sec
|
|
bra LCB63
|
|
@l2: ldx #$03
|
|
clc
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
InitTextWindow:
|
|
pha
|
|
lda OLDBASL
|
|
sta BASL
|
|
lda OLDBASH
|
|
sta BASH
|
|
stz WNDTOP
|
|
stz WNDLFT
|
|
lda #80
|
|
sta WNDWDTH
|
|
lda #24
|
|
sta WNDBTM
|
|
jsr LC9C0
|
|
pla
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
;; ???
|
|
sta CLRALTCHAR
|
|
Disable80Col:
|
|
sta CLR80COL
|
|
sta CLR80VID
|
|
rts
|
|
|
|
Enable80Col:
|
|
sta SET80COL
|
|
sta SET80VID
|
|
sta SETALTCHAR
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
LCBE1: lda MODE
|
|
cmp #M_INACTIVE
|
|
beq LCC04
|
|
and #M_ESC
|
|
beq LCC04
|
|
jsr LCEBB
|
|
sta OLDCH
|
|
and #$80
|
|
eor #$AB
|
|
bra LCC13
|
|
|
|
;;; ============================================================
|
|
|
|
LCBF8: lda MODE
|
|
and #M_ESC
|
|
beq LCC04
|
|
lda OLDCH
|
|
bra LCC13
|
|
LCC04: jsr LCEBB
|
|
eor #$80
|
|
|
|
;; If within "@ABC...XYZ[\]^_" range, map to $00-$1F
|
|
;; so it shows as inverse uppercase, not MouseText.
|
|
cmp #'@'
|
|
bcc :+
|
|
cmp #'_'+1
|
|
bcs :+
|
|
and #$1F
|
|
:
|
|
|
|
LCC13: ldy CH
|
|
jmp LCEC8
|
|
|
|
LCC18: php
|
|
sei
|
|
lda WNDTOP
|
|
sta $05F8
|
|
LCC1F: lda $05F8
|
|
jsr LCAA3
|
|
lda BASL
|
|
sta BAS2L
|
|
lda BASH
|
|
sta BAS2H
|
|
ldy #$00
|
|
LCC2F: bit TXTPAGE1
|
|
lda (BAS2L)
|
|
bit TXTPAGE2
|
|
sta (BASL),y
|
|
bit TXTPAGE1
|
|
inc BAS2L
|
|
lda (BAS2L)
|
|
sta (BASL),y
|
|
iny
|
|
inc BAS2L
|
|
cpy #$14
|
|
bcc LCC2F
|
|
lda #$A0
|
|
LCC4B: bit TXTPAGE2
|
|
sta (BASL),y
|
|
bit TXTPAGE1
|
|
sta (BASL),y
|
|
iny
|
|
cpy #$28
|
|
bcc LCC4B
|
|
inc $05F8
|
|
lda $05F8
|
|
cmp #$18
|
|
bcc LCC1F
|
|
LCC64: plp
|
|
jmp LCA9B
|
|
|
|
LCC68: php
|
|
sei
|
|
sta SET80COL
|
|
lda WNDTOP
|
|
sta $05F8
|
|
LCC72: lda $05F8
|
|
jsr LCAA3
|
|
ldy #$13
|
|
bit TXTPAGE1
|
|
LCC7D: lda (BASL),y
|
|
pha
|
|
dey
|
|
bpl LCC7D
|
|
ldy #$00
|
|
lda BASL
|
|
sta BAS2L
|
|
lda BASH
|
|
sta BAS2H
|
|
LCC8D: bit TXTPAGE2
|
|
lda (BASL),y
|
|
bit TXTPAGE1
|
|
sta (BAS2L)
|
|
inc BAS2L
|
|
pla
|
|
sta (BAS2L)
|
|
inc BAS2L
|
|
iny
|
|
cpy #$14
|
|
bcc LCC8D
|
|
inc $05F8
|
|
lda $05F8
|
|
cmp #$18
|
|
bcc LCC72
|
|
sta CLR80COL
|
|
bra LCC64
|
|
LCCB2: jsr LCCB8
|
|
jmp pageC5::DoBankC5 ; bad disasm or ...?
|
|
|
|
LCCB8: bit $0579
|
|
bmi LCCD7
|
|
LCCBD: bit $05FA
|
|
bvs LCCCE
|
|
bpl LCCCE
|
|
lda $05FF
|
|
cmp $06FF
|
|
beq LCCD3
|
|
bra LCCD5
|
|
LCCCE: bit KBD
|
|
bmi LCCD5
|
|
LCCD3: clc
|
|
rts
|
|
|
|
LCCD5: sec
|
|
rts
|
|
|
|
LCCD7: jsr LCDA8
|
|
beq LCCE1
|
|
LCCDC: stz $0579
|
|
bra LCCBD
|
|
LCCE1: phx
|
|
ldx FKEYPTR
|
|
jsr ReadAuxRAM
|
|
lda $0200,x
|
|
jsr ReadPreviousRAM
|
|
plx
|
|
cmp #$00
|
|
beq LCCDC
|
|
bra LCCD5
|
|
LCCF5: jsr LCCFB
|
|
jmp pageC5::DoBankC5
|
|
|
|
LCCFB: bit $0579
|
|
bpl LCD03
|
|
jmp LCD85
|
|
|
|
LCD03: bit $05FA
|
|
bvs HandleSpecialKeys
|
|
bpl HandleSpecialKeys
|
|
phx
|
|
ldx $06FF
|
|
bit RDRAMRD
|
|
php
|
|
sta RDCARDRAM
|
|
lda $0800,x
|
|
plp
|
|
bmi LCD1E
|
|
sta RDMAINRAM
|
|
LCD1E: inx
|
|
bne LCD23
|
|
ldx #$80
|
|
LCD23: stx $06FF
|
|
plx
|
|
pha
|
|
pla
|
|
php
|
|
ora #$80
|
|
plp
|
|
bra LCD38
|
|
|
|
;;; ============================================================
|
|
|
|
HandleSpecialKeys:
|
|
lda KBD
|
|
bit KBDSTRB
|
|
bit $C0B4 ; Softswitch for Fkeys???
|
|
LCD38: bpl LCD41
|
|
LCD3A: cmp #$06
|
|
bcc LCD40
|
|
ora #$80
|
|
LCD40: rts
|
|
|
|
;; Deal with special keys
|
|
LCD41: and #$7F
|
|
cmp #$01 ; CLRL
|
|
bne LCD4B
|
|
lda #$1A
|
|
bra LCD3A
|
|
|
|
LCD4B: cmp #$03 ; CLRS
|
|
bne LCD53
|
|
lda #$0C
|
|
bra LCD3A
|
|
|
|
LCD53: cmp #$04 ; HOME
|
|
bne LCD5B
|
|
lda #$19
|
|
bra LCD3A
|
|
|
|
;; "Macro" keys
|
|
LCD5B: cmp #$06 ; RUN
|
|
bne LCD63
|
|
lda #$2C ; Like F13
|
|
bra LCD73
|
|
|
|
LCD63: cmp #$1F ; LIST
|
|
bne LCD6B
|
|
lda #$2D ; Like F4
|
|
bra LCD73
|
|
|
|
LCD6B: cmp #$20 ; F1
|
|
bcc LCD3A
|
|
cmp #$2C ; F12+1
|
|
bcs LCD3A
|
|
|
|
LCD73: pha ; Handle Fkeys
|
|
jsr LCDA8
|
|
beq LCD7C
|
|
pla
|
|
bra LCD3A
|
|
|
|
LCD7C: lda #$FF
|
|
sta $0579
|
|
pla
|
|
jsr FindFKEYDefnOffset
|
|
LCD85: jsr LCDA8
|
|
beq LCD91
|
|
LCD8A: stz $0579
|
|
lda #$A0
|
|
bra LCD3A
|
|
|
|
LCD91: phx
|
|
ldx FKEYPTR
|
|
jsr ReadAuxRAM
|
|
lda $0200,x
|
|
jsr ReadPreviousRAM
|
|
plx
|
|
inc FKEYPTR
|
|
cmp #$00
|
|
beq LCD8A
|
|
bra LCD3A
|
|
|
|
;;; ============================================================
|
|
|
|
LCDA8: jsr ReadAuxRAM
|
|
lda #$00
|
|
phx
|
|
tax
|
|
clc
|
|
LCDB0: adc $0200,x
|
|
inx
|
|
bne LCDB0
|
|
plx
|
|
jsr ReadPreviousRAM
|
|
cmp $04F9
|
|
rts
|
|
|
|
;;; ============================================================
|
|
;;; Given FKEY in A ($20...$2D), get definition offset
|
|
;;; (from Aux $200) into FKEYPTR
|
|
|
|
FindFKEYDefnOffset:
|
|
phx
|
|
phy
|
|
jsr ReadAuxRAM
|
|
sec
|
|
sbc #$20 ; Map F1 to $00, etc
|
|
ldy #$00
|
|
tax
|
|
beq @l4
|
|
@l1: lda $0200,y
|
|
beq @l2
|
|
iny
|
|
bra @l1
|
|
|
|
@l2: iny
|
|
@l3: dex
|
|
bne @l1
|
|
@l4: jsr ReadPreviousRAM
|
|
sty FKEYPTR
|
|
ply
|
|
plx
|
|
rts
|
|
|
|
;;; ============================================================
|
|
;;; Initialize FKEY definitions
|
|
|
|
;;; Copied to Aux $200 by `InitFKEYDefinitions`
|
|
SpecialStrings:
|
|
.byte "RUN\r", 0
|
|
.byte "LIST\r", 0
|
|
.byte $FF
|
|
|
|
InitFKEYDefinitions:
|
|
sta WRCARDRAM
|
|
lda #$00
|
|
tax
|
|
@l1: sta $0200,x
|
|
inx
|
|
cpx #$0C
|
|
bcc @l1
|
|
@l2: lda SpecialStrings - 12,x
|
|
cmp #$FF
|
|
beq @l3
|
|
sta $0200,x
|
|
inx
|
|
bra @l2
|
|
|
|
@l3: sta WRMAINRAM
|
|
stz $0579
|
|
;; fall through
|
|
|
|
LCE0D: jsr LCDA8
|
|
sta $04F9
|
|
jmp pageC5::DoBankC5
|
|
|
|
;;; ============================================================
|
|
|
|
;;; Read from Aux (saving previous state)
|
|
|
|
ReadAuxRAM:
|
|
pha
|
|
lda RDRAMRD
|
|
sta RDMAINRAM
|
|
sta OURCV
|
|
sta RDCARDRAM
|
|
pla
|
|
rts
|
|
|
|
;;; Restore previous read bank state
|
|
|
|
ReadPreviousRAM:
|
|
pha
|
|
sta RDMAINRAM
|
|
lda OURCV
|
|
bpl @l1
|
|
sta RDCARDRAM
|
|
@l1: pla
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
;;; Load X,Y with address of a routine -1 (for `ROMCall`)
|
|
.macro LDXY addr
|
|
ldx #.hibyte(addr-1)
|
|
ldy #.lobyte(addr-1)
|
|
.endmacro
|
|
|
|
;;; ============================================================
|
|
|
|
DoSETWND:
|
|
lda #0 ; set cursor to row 0
|
|
bit RDTEXT ; unless graphics mode
|
|
bmi :+
|
|
lda #20 ; then use row 20
|
|
: LDXY SETWND
|
|
bra ROMCall
|
|
|
|
;;; ============================================================
|
|
|
|
DoBell:
|
|
LDXY BELLB
|
|
bra ROMCall
|
|
|
|
;;; ============================================================
|
|
|
|
DoSETKBD:
|
|
LDXY SETKBD
|
|
bra ROMCall
|
|
|
|
;;; ============================================================
|
|
|
|
DoSETVID:
|
|
LDXY SETVID
|
|
bra ROMCall
|
|
|
|
;;; ============================================================
|
|
|
|
DoMON_VTAB:
|
|
LDXY MON_VTAB
|
|
bra ROMCall
|
|
|
|
;;; ============================================================
|
|
|
|
DoClearEOS:
|
|
LDXY CLREOP
|
|
bra ROMCall
|
|
|
|
;;; ============================================================
|
|
|
|
DoHomeAndClear:
|
|
LDXY HOME
|
|
bra ROMCall
|
|
|
|
;;; ============================================================
|
|
|
|
DoClearEOL:
|
|
LDXY CLREOL
|
|
;; fall through
|
|
|
|
;;; ============================================================
|
|
|
|
;;; A = character, X,Y = ROM address-1 (return value to push to stack)
|
|
ROMCall:
|
|
sta TEMP2
|
|
bit RDLCRAM
|
|
php
|
|
bit RDLCBNK2
|
|
php
|
|
lda #.hibyte(ROMCallReturn-1)
|
|
pha
|
|
lda #.lobyte(ROMCallReturn-1)
|
|
pha
|
|
phx
|
|
phy
|
|
bit ROMIN2
|
|
lda TEMP2
|
|
rts
|
|
|
|
ROMCallReturn:
|
|
plp
|
|
bpl @l2
|
|
plp
|
|
bpl @l1
|
|
bit LCBANK2
|
|
bit LCBANK2
|
|
bra @l4
|
|
|
|
@l1: bit ROMIN
|
|
bit ROMIN
|
|
bra @l4
|
|
|
|
@l2: plp
|
|
bpl @l3
|
|
bit LCBANK1
|
|
bit LCBANK1
|
|
bra @l4
|
|
|
|
@l3: bit $C089 ; ???
|
|
bit $C089 ; ???
|
|
@l4: lda BASL
|
|
sta OLDBASL
|
|
lda BASH
|
|
sta OLDBASH
|
|
lda CH
|
|
sta OURCH
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
LCEBB: ldy CH
|
|
LCEBD: phy
|
|
jsr LCED2
|
|
lda (BASL),y
|
|
LCEC3: ply
|
|
bit TXTPAGE1
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
LCEC8:
|
|
phy
|
|
pha
|
|
jsr LCED2
|
|
pla
|
|
sta (BASL),y
|
|
bra LCEC3
|
|
|
|
;;; ============================================================
|
|
|
|
LCED2:
|
|
bit RD80VID
|
|
bpl @l1
|
|
tya
|
|
lsr a
|
|
tay
|
|
bcc @l2
|
|
@l1: bit TXTPAGE1
|
|
rts
|
|
|
|
@l2: bit TXTPAGE2
|
|
rts
|
|
|
|
;;; ============================================================
|
|
|
|
.if !INCLUDE_PATCHES
|
|
.byte "EN\r"
|
|
.byte "\tASL\tWIDTH\r"
|
|
.byte "\tSTA\tON80ST\tMAKE SURE 80 STORE IS ENABLED\r"
|
|
.byte "\r"
|
|
.byte ";CHANGED THIS 9/15/86 FOR HABA MERGE AND MOUSE WRITE:\r"
|
|
.byte "\r"
|
|
.byte "FIXCOL\tLDA\tCOL\tHAVE THEY CHANGED COL ?\r"
|
|
.byte "\tCMP\tOLDCOL\r"
|
|
.byte "\tBNE\t.2\tYES - USE THEIRS\r"
|
|
.byte "\tLDA\tAPPLECOL\tELSE USE OURS (THEY MIGHT HAVE\r"
|
|
.byte ";\t\t\t CHANGED THIS TOO)\r"
|
|
.byte ".2\tSTA\tCOL\r"
|
|
.byte "\r"
|
|
.byte ".END\tRTS\r"
|
|
.byte "\r"
|
|
.byte "\x1F"
|
|
.byte "\r;E"
|
|
.else
|
|
|
|
Patch4:
|
|
lda CHAR ; char to be printed
|
|
bit INVFLG
|
|
bmi :+ ; normal
|
|
and #$7F ; clear high bit
|
|
: and #$FF ; set N flag
|
|
rts
|
|
|
|
.endif
|
|
|
|
;;; ============================================================
|
|
|
|
.res $D000 - *, 0
|
|
|
|
;;; ============================================================
|
|
|
|
.assert * = $D000, error, "Length changed"
|